On Wed, 31 Jan 2018 18:04:00 -0500 daniel.m.jor...@oracle.com wrote: > lru_lock, a per-node* spinlock that protects an LRU list, is one of the > hottest locks in the kernel. On some workloads on large machines, it > shows up at the top of lock_stat.
Do you have details on which callsites are causing the problem? That would permit us to consider other approaches, perhaps.